Any valid login.gov account may be used with EDGAR Next.  It is strictly up to the individual if they want their personal or other login.gov account utilized for EDGAR Next, or if they wish to create a new account using their business email address. login.gov account is outside of EDGAR Next, including the Adopting Beta environment, so that will continue to exist unchanged. 

EDGAR Next accounts and settings created in the beta environment are fictitious and only exist in the beta environment and will not impact the real EDGAR (Next) world.